RECEIVABLES (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Billed receivables:
Trade and other receivables	$ 381,628	$ 361,460
Less: Allowance for doubtful accounts	(6,527)	(7,760)
Unbilled receivables:
Recoverable costs and estimated earnings not billed	296,500	238,309
Less: Progress payments applied	(734)	(3,291)
Net unbilled receivables	295,766	235,018
Receivables, net	$ 670,867	$ 588,718

Amount of progress payment offset against unbilled contract receivable.

No definition available.

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- Definition

-- None. No documentation exists for this element. --

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- Definition

Amount of allowance for credit loss on accounts receivable.

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- Definition

Amounts due for billed services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the Company and, at a minimum, one other party. An example would be amounts billed to customers under contracts or programs but not paid as of the balance sheet date.

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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.

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The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

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- Definition

Unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be amounts associated with contracts or programs where the recognized revenue for performance thereunder exceeds the amounts billed under the terms thereof as of the date of the balance sheet.

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